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leonid [27]
3 years ago
12

The hardcover version of a book weighs twice as much as its paperback version. The hardcover book and the paperback together wei

gh 4.2 pounds. Which system of equations can be used to find h, the weight of the hardcover book, and p, the weight of the paperback?
Mathematics
2 answers:
Ymorist [56]3 years ago
6 0

Answer:

D. h=4.2-p    h=2p

Step-by-step explanation:

edg 2020

jasenka [17]3 years ago
5 0

I think  H=P*2/4.2 could work corrext me if im wrong please


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Answer:

The intermediate step are;

1) Separate the constants from the terms in x² and x

2) Divide the equation by the coefficient of x²

3) Add the constants that makes the expression in x² and x a perfect square and factorize the expression

Step-by-step explanation:

The function given in the question is 6·x² + 48·x + 207 = 15

The intermediate steps in the to express the given function in the form (x + a)² = b are found as follows;

6·x² + 48·x + 207 = 15

We get

1) Subtract 207 from both sides gives 6·x² + 48·x = 15 - 207 = -192

6·x² + 48·x = -192

2) Dividing by 6 x² + 8·x = -32

3) Add the constant that completes the square to both sides

x² + 8·x + 16 = -32 +16 = -16

x² + 8·x + 16 = -16

4) Factorize (x + 4)² = -16

5) Compare (x + 4)² = -16 which is in the form (x + a)² = b

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2 years ago
Select another name for angle 2 in the figure below.
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Answer:

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Step-by-step explanation:

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3 years ago
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Answer:

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Note that payout is nil if policyholder lives beyond 70 years

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Answer:

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Step-by-step explanation:

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3 years ago
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Read 2 more answers
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